Air-brake-applying device.



H. J. LAUZON.

MR BRAKE APPLYING DEVICE. APPLICATION HLED MAY15,'1914.

Patented J 11116 13; 1916.

2 SHEETSSHEET 1.

H. J. LAUZON.

AIR BRAKE APPLYING DEVICE. APPLICATION HLED MAY 15. 19x4.-

Patented June 13, 1916.

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STATES PATENT OFFICE.

- -HENRY J'. LAUZON, F BATHGATE, NORTH DAKOTA.

To all whom-it may concern:

v Be'it known thatI, HENRY. J. LAUzoN, a

citizen of the United States, residing at "l B'athgate, in the county ofPernbina, State 0f North Dakota,- and useful Improvements inAir-'Brake-Aphave invented certain new plying Devices; and I do herebydeclare the following to be a full, clear, and exactlde- 'scription ofthe invention, such as will en-- able others skilled in the art to whichit appertains to make and use the same.

This invention relates to an air brake applying device.

An object of the invention is to provide for-theautomatic stopping of atrain when the'engineer thereof fails to regard a stop a s gnal.

A further object of the invention is to provide means which maybe setwith the stop signal to operate the said train stopping device. v v.With these and other objects in View, such as will appear as thedescrlption progresses,

4 my invention comprises the combination and .525;

arrangement of parts as herein set forth and subsequently claimed.

- I Referrin to the drawing: Figure 1 is a 1 rear elevatlon of alocomotive, showing my gla'o device in place thereon.

larged sectional view of the device showing I the valve gate forallowing the airto flow from the air inlet mechanism in open position.Fig. 3 1s a similar view, showing the gate in closed- J35" Fig. 5 is asection on line 55 of Fig. 3.

pipe to the brake applying position. Fig.4 is a plan view of the device;

Fig. 6 is anenlarged view of the trip mechanism showing the same inoperative posi- I tron in full lines and in inoperative position indotted lines. Fig. 7 is asideelevat ion of the device, showing the triplever in engagement with the trip rod previousto the operation of thesaid trip rod. Fig. 8 is a bottom plan view of thedevice. 45

Referring to the drawing by reference characters wherein like parts areindicated by like numerals throughout the several views, the air inletpipe is indicated by the reference character 1 to which-is attached by 0a cross pipe 2 the pipe 3 through which the air is allowed to flow tothe air brake applymg mechanism. In the pipe 2 is shown conventionallythe present applying device 4 which is controlled by the engineer. Mydevice is located directly beneath this present applying device 4 andcomprises a valve 5 Specification of Letters Patent.

certain of their endsto the Fig. 2 is'an en-' Patented June 15,1916.

" Applicationflled m 1 5, '1914. Serial No; 838,735. a

connected between the said pipes 1 and 3 b short pipesfiand 7 which yare connected at valve and at their other'ends' to'T joints 8 and 9 ofthe pipes 1 and 3. This valve constitutes a casing 10 h'avlng apertures11 and 12 which are in c'ommunlcation with -the apertures in the pipes 6and 7 to the valve at the .proper time. On the upper portion of thecasing is formed a cylindrical pro ection 13 which is closed at the'topand has an aperture 14 therein. Located directly beneath said projectionis a downwardly extending projection 15 having a centrally locatedlongitudinal hole 16 therein which communicates with achamber 17 in thecasing 10 andwith the chamber 18 in the pro ect1on 13.

gate 19 to the lower end of which is attached an,v operatlng rod 20which extends down through the hole 16 in the portion 15 and out beyondsaid portion through an aperture 21 in the lower end thereof. The lowerend of this projection 15 is reduced in diameter and has mounted thereinpacking which, surrounds the rod 20 and prevents the escape of air fromthe valve. The rod 20 is reciprocably'mounted within the casing to causethe valve gate to be either pushed upwardly into the chamber 18 ordownwardly into the chamber 17 to close the communication. between thepipes 1 and 3 through the valve 5.

. In order that the valve gate may be ordinarily kept within the casing18 in its uppermost position there is formed on the outer side of theprojection 15 at diametrically op posite points two hooks 22 and 23 toare attached coil springs 24 and 25 which springs are at their endsattached to a cross arm 26 secured to the rod 20 at its lower end, thetendency of which is tokeep the valve gate in its upper positio On thelower end of the rod 20 is formed a spring clip 27 which cotiperateswith the trip rod 28 to hold the valve gate in its lowermost position orto releasethe clip 27 to allow it to be pulled upwardly by the springs24' and 25. This trip rod-28 is rotatably mounted in a box 29 on theframe of a locomotive. 1

On the inner end of this rod 28 and projecting upwardly therefrom 'is'arod 30 having on its end an enlarged spherical portion 31 which isengaged bythe clip 27 to hold Slidably mounted in these chambers 17 and18 is a cylindrical valve.

in. inoperative position whichallow air to flow through the said clipand consequently the rod 20 in its lowermost positign.

' a member 36 adapted to be secured to the v I tie beneath the rail andto the outside of the On the opposite end of the rod 28 isformed adownwar ly projecting lever 32 ha vi'ng an enlarged lower end 33 whichcooperates with a trip lever 34 made of spring steel and pivoted as at35 to a rigid vertical said rail when the member 34.is thrown in itshorizontal position it will extend across the path or movement of thelever 32 and engage the same and causethe rod 28 to. be oscillated .tooperate the valve gate 19.

However, when this'trip lever 34 is in its vertical position, it willnot be in the path of movement of the lever 32 and therefore Y the valvegate 19 will'not be operated. It

is to be understood that this trip lever 34 may be operated "inthe samemanner and together with a semaphore signal .so that when the signal isset to stop atrain the lever will also be thrown into suc positidii'that the lever 32 will be engaged to operate the valve gate.

On either side of the valve 5 and in the,

pipes 6 and 7 is located a hand valve 3'7 by means of which air may beshut oitfrom said valve from either of the pipes 1 or 3.

' In operation, assumingthat the-valve is in such position as shown inFig. 3, .that is with the gate 19 withinthe chamber 17 to close thecommunication between the {pipesl and 3 and is held in such position Athe engagement of the rod 30 with" the clip 27, as the train passes thetrip lever 34 which has been previously set into its horiout of thechamber 17 in'the casing 10 up-- wardlyinto the chamber 18 in theprojection '13 andiconsequently communication between the pipes 1 and 3'through the valve 5.is

' opened, it being understood thatthe hand valve 37 has been previouslyopened. In order that there may be no compression of air I betweenthegate19 and, theupper end of the pro ection 13 the aperture v14 isprovided there which. allows the escape of air there'- tam-.1 this timemay be 0mm in through and thus does not counteract the effect of thesprings25 and 24. The opening of this valve 5 and passing of airfrom'the air supply pipe 1 through the pipe 3 to the brake operatingmechanism causes the said brakesto be applied and the train thusautomatic'fally" stopped. After the brakes have been'a'pplied and it isdesired to again return the gateto its position in the chamber 17 sothat it closes the communication between thepipes 1 and 3 the valves 37are closed, which closes the communication between the said pipes 1 and3 and thus releases. the pressure of air from the said valve gate andthe tendency thereof to hold it in its uppermost 7 position. The gatemay thenbe lowered'and the remainder of the valves reset by theengagement of the rod 30 with the clip 27 in which the parts of thedevice are again in operative relation.

Fromthe foregoing description it may be seen that I have provided adevice which will automatically stop a train, and I have furtherprovided a lever operating a trip rod carried by a locomotive to openthe valve between the air supply pipe and the air brake applyingmechanism to apply said brakes.' ,I have further provided additionalvalves on. each side of said first mentioned valves by means 9f whichpressure within the said valve may be relieved so that the same may bereadily operated to reset the mechanism. V

I do notgwishf-to be limited to the particular'embodiment of anyinvention shown, but only so tar asis neces'ary by the claim.

v. v Vhat 'isclaimei Inan air brak with a casiflgjiajv mga oppositesides 'thereoigjofa plunger mounted in said casing 'a-n'tl-E'having arod extendingyoutwardly th 1'fough" one end thereof, a pair ofresilien-t'jaws-on one end of the plun ger rod adapted-to be-engagedby asuitable member to maintain the plunger in alinement with the saidports, a cross arm secured-to the plunger rod and springs secured to theends of the cross arm and to the case ing, which springs are adapted tomove the plunger out of alinement with the ports upon the release of thespring arms.

In testimony whereof, I aflix my signature, in the presence of twowitnesses.

' HENRY J. LAUZON.

the combination Witnesses v WILLIAM QUIGLEY, Torrmn ELEY.

five cents each, by addremng the c on nilssioner of Patents,wuhlngtomllc."

pair of ports atthe'

